Water-closet coupling.



H. s. MADDOGK. 1 I WATER GLOSET GOUPLING.

APPLIOATION FILED JULY 25, 1908.

Patented act. 12, 1909.

.' of the sa ine.

UNITED sr T s PATENT OFFICE.

HARRYS. MADDOCK, or TRENTON, NEW JERSEY, s's enon'ToT oMAs 'MADDOCKSSONS 00.,or TRENTON, NEW JERSEY, A oonPoRA'rIoN or 'NEXV JERSEY.

'-WATER-CLOSET COUPLING.

{Specification of Lettersiatent. Patented Oct, 12, 1909.

f Application filed July; 25, 19.0.8. Serial No; 445,390.

To all whom it-may concernf Be it known that I, HARRY S. Mnonoon, acitizen of-the tUnitedStat'es, residing at Trenton, county .of Mercer,State of New Jersey, have invented certain new and useful Improvementsin ater-Closet Coupe lingsyand I do herebydeclarethe followingito beafull, clear, and exact description of the invention, suchaslwillienableothers skilled inthe art'to which it appertains to make anduse'the same.

This invention relates. 1 to couplings .:for the flush I pipes of waterclosets I and has for its object to provide a simple, cheap ,andefficientcoupling. between the-closet bowl and the water supply pipe,that will permit thev bowlto be accurately connected -.withsaid pipewithout bending; or deforming :the' latter, and tothis en'dsaid couplingcomprises an elongated water inleto ening 1n the bowl, a nippleadjustable longitudinally :of isaid opening and meansfforrlocking saidnipple to the bowl in adjusted .relation in said opening, and preferablythere is provided a packing gasket, of rubber or the like,surroundingthe nipple and covering the portions-o'f the. opening in thebowl not occupied by the nipple.

A convenient and approved form of the invention is illustrated in theaccompanying drawings, in which: V

Figure 1 is a vertical longitudinal section of a siphon jet closethaving the improved coupling applied thereto. Fig. 2 is a horizontalsection on line 22 of Fig. 1 looking in the direction of the arrow. Fig.3 is an enlargeddetail of the coupling nipple in side elevation. Fig. atis a bottom plan view Referring to; thedrawings, a indicates the bowlofa water closet of the siphon jet type which is provided'atthe rear ofits upper face with awater inlet opening Z) having a diameterlongitudinally of the bowl considerably greater than the diameter trans-I versely of saidbowl so that said opening is of. generally ellipticalform, viz: elon- :gated ina direction toward the rear. of the bowl. Theloweredgeofthe rim of said opening is preferably provided withdiametrically opposite recesses 11, the purpose ofwhich will beexplained later.

Occupying thelopening b is a short pipe section ornipple Z ofag'diameter somewhat less than the shorter or/transverse diameter ofsaid opening. .Oppositely disposed on thelower.endofsaid nipple are twolateral lugsave, .Wl11Cl1;LI'6 adapted to engage the recesses 0, 0,and-assist in looking the nipple tolthe-bowl. Saidrecesses c, 0areconsiderably .longerthan the lugs e, c are wide, to permit the,latter to: engage the said recess in-all adjusted positions of thenipple. The upper end .of the nipple is. externallyscrewlillI-QZLClGClitO .receivea clamping-nut g which is provided with abasal flange of-sulticient diameter to cover the-opening b when saidnutais set down on the top of the bowl to secure the nipple in place.

1 In. OIdQl'ftOll'lfi kB an absolutely tight joint between the :nut. andthe bowl .and to seal 'the-portionsiof the opening b gsurrounding thenipple, cl a packing ringorwvasher 7:. of rubber, orQther-suitablematerial, is applied about )said nipple below said nut and. is

clamped firmly against the bowl and over the opening .6 when the ,nut lgis screwed down on .nipplelcl.

In the forms of closets heretofore employed, to connect the flush pipeto the bowl, the latter is fixed in the position on the floor determinedby the setting of the soil pipe. The vertical position of the flush pipehowever fixed by the location of the flush tank and the lower end of theflush pipe seldom registers accurately with the inlet opening orcoupling nipple in the bowl. Therefore it has been necessary generallyto bend the inlet pipe to bring its lower end in exactvertical registrywith the inlet to the bowl, or to provide a double elbow between thesupply pipe and the bowl, both of which expedients are obviouslyobjectionable. By means of the present invention no distortion of theinlet pipe is required, nor are extra bends or elbows required to makethe coupling between the flush pipe and the bowl, and moreover a carefuladjustment of the relative positions of the soil pipe and the flush tankis no longer necessary.

It will be noted that when the closet is set in the position determinedby the location of the soil pipe, and the flush tank is secured to thewall or other support back of the bowl, the flush pipe is then droppedvertically from the tank, and nipple d, is adjusted longitudinally inthe opening 5 until it lies directly below the end of the flush. pipewhich may then be accurately connected to said nipple by any of thecustomary forms of joints or pipe couplings, after which the nut g isset down on the threads of said nipple (Z until said nipple is securelylocked to the bowl and washer h is clamped over the opening b. It willbe noted that the nipple 61 moves freely in the opening 1) until the nutg is tightened, but when this is done the lugs e, e bind against therecessed shoulders of the rim around the opening, and lock the nipplerigidly in position. The nipple (Z may be readily removed from orapplied to the bowl by turning said nipple until the lugs e, a lie inthe longer diameter of the opening I), as will be apparent from aninspection of Fig. 2. To permit said nipple to be turned in the openingZ) without applying a wrench to the threaded end of said nipple theinterior of the latter may be conveniently provided with two or morelugs i, i to be engaged by a spanner or other special tool.

What I claim is 1. A water closet bowl having an elongated water inletopening, in combination with a coupling nipple adjustable longitudinallyof said opening, and means for locking said nip-ple to the bowl inadjusted relation in said opening.

2. A water closet bowl having an elongated water inlet opening, incombination with a coupling nipple adjustable longitudinally of saidopening, a packing gasket surrounding the nipple and covering the.portion of the inlet opening not occupied b said 111 ale and means forlockin said nipple to the bowl in adjusted relation in said opening.

3. A water closet bowl having an elongated water inlet opening, incombination with a coupling nipple adjustable longitudinally of saidopening, said nipple having lateral lugs to engage the lower riin at thesides of said opening and having exterior screw threads on its outerend, a nut eugaging the threaded end of said nipple,

and a packing gasket surrounding said nipple and adapted to be clampedbetween said nut and the bowl to cover said opening.

4. A water closet bowl having an elongated water inlet opening, incombination with a coupling nipple having lateral lugs on its lower endto engage the under sides of the rim surrounding said opening, a nut onsaid nipple to clamp the same in the desired position longitudinally ofthe opening and a packing gasket surrounding said nipple and adapted tobe clamped over said opening in the several adjusted positions of saidnipple.

In testimony whereof I afiix my signature, in presence of two witnesses.

HARRY S. MADDOCK.

Witnesses:

H. S. MAnnooK, J r., CHAS. J. BOHLINGER.

